125503616411 has 4 divisors (see below), whose sum is σ = 125702513424. Its totient is φ = 125304719400.

The previous prime is 125503616389. The next prime is 125503616423. The reversal of 125503616411 is 114616305521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114616305521 = 73 ⋅1570086377.

It is a cyclic number.

It is not a de Polignac number, because 125503616411 - 2²² = 125499422107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125503616111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99447560 + ... + 99448821.

It is an arithmetic number, because the mean of its divisors is an integer number (31425628356).

Almost surely, 2^125503616411 is an apocalyptic number.

125503616411 is a deficient number, since it is larger than the sum of its proper divisors (198897013).

125503616411 is an equidigital number, since it uses as much as digits as its factorization.

125503616411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198897012.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 125503616411 in words is "one hundred twenty-five billion, five hundred three million, six hundred sixteen thousand, four hundred eleven".